Update error message

The color format used for surfaces has two different names.  The
one in the error message is the "native" name, which doesn't mean
anything to external developers.

Change-Id: Ic0561f4ad12970b0e0a60bd17b4e3997af1a9f0e
diff --git a/media/libstagefright/omx/OMXNodeInstance.cpp b/media/libstagefright/omx/OMXNodeInstance.cpp
index 61a866f..525e18d 100644
--- a/media/libstagefright/omx/OMXNodeInstance.cpp
+++ b/media/libstagefright/omx/OMXNodeInstance.cpp
@@ -596,7 +596,8 @@
     CHECK(oerr == OMX_ErrorNone);
 
     if (def.format.video.eColorFormat != OMX_COLOR_FormatAndroidOpaque) {
-        ALOGE("createInputSurface requires AndroidOpaque color format");
+        ALOGE("createInputSurface requires COLOR_FormatSurface "
+              "(AndroidOpaque) color format");
         return INVALID_OPERATION;
     }